Portola Hills Weather Forecast

    • 64
    • 91

    Mostly Sunny

    • 64
    • 92

    Increasing Clouds

    • 64
    • 90

    Mostly Sunny

    • 63
    • 90

    Mostly Sunny

    • 62
    • 89

    Mostly Sunny

    • 62
    • 90

    Mostly Sunny

    • 63
    • 91

    Mostly Sunny

Today 24 Jul Orange County Inland

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 84 to 88 towards the coast to 92 to 95 farther inland. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 24 Jul Orange County Inland

Mostly clear. Patchy fog overnight. Lows 64 to 69. Areas of Winds south to 10 Mph this evening becoming light.

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Portola Hills Temperature Statistics

July Temperature

Corona Airport (13 miles)

  • Lowest 3 July, 2026

    53.1 °F

  • Average July

    74.2 °F

  • Highest 15 July, 2026

    98.1 °F

Climate (2021–2026)

Corona Airport (13 miles)

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  • Average Low 2021–2026

    52.3 °F

  • Average 2021–2026

    65.1 °F

  • Average High 2021–2026

    78.3 °F
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